Results/Photos

Date: Sept. 27, 2026 Participant: Rosa Hernandez Perez #12137 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Steady Front Half Gives Way to a Hard-Earned Finish Rosa Hernandez Perez completed the marathon in 4:05:34, an average pace of 9:22 per mile. Her first 13 miles were remarkably even, clicking off between 8:14 and 8:52 per mile and reaching the halfway point in 1:50:21. Mile 11 stood out as her fastest full mile, a 7:47 split. The back half told a different story, with her pace easing into the 9:3011:40 range from mile 16 onward as the effort of 26.2 miles at altitude took hold. Boulder's elevation, over 5,000 feet, adds its own demand to any marathon distance, and Hernandez Perez's pacing pattern reflects that reality as she pushed through the closing miles near the lululemon Power-Up Zone around mile 22.5 before finishing on the Pearl Street Mall. Considering the second-half fade, she might look to bank a touch more control in the middle miles next time to protect that strong early rhythm.